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https://github.com/Telecominfraproject/OpenCellular.git
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5fac757abe
The existing library had a bunch of dependencies which are too many to build for the 32-bit platform. So this checkin prunes the dependency list by building only things that are absolutely required for the functionality used in 32-bit Post-Installer. Made the use of libuuid restricted only to cgpt and unit tests so that libcgpt-cc.a doesn't depend on it. BUG=chromium-os:25374 TEST=Built 32-bit and 64-bit. Tested 32-bit post-install. Change-Id: Idd0826fdf507a95728fee8adac9520e26f05d469 Reviewed-on: https://gerrit.chromium.org/gerrit/16433 Reviewed-by: Don Garrett <dgarrett@chromium.org> Reviewed-by: Sonny Rao <sonnyrao@chromium.org> Commit-Ready: Jay Srinivasan <jaysri@chromium.org> Tested-by: Jay Srinivasan <jaysri@chromium.org>
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "cgpt.h"
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#include <string.h>
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#include "cgptlib_internal.h"
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#include "cgpt_params.h"
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int cgpt_create(CgptCreateParams *params) {
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struct drive drive;
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if (params == NULL)
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return CGPT_FAILED;
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if (CGPT_OK != DriveOpen(params->drive_name, &drive))
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return CGPT_FAILED;
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// Erase the data
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memset(drive.gpt.primary_header, 0,
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drive.gpt.sector_bytes * GPT_HEADER_SECTOR);
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memset(drive.gpt.secondary_header, 0,
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drive.gpt.sector_bytes * GPT_HEADER_SECTOR);
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memset(drive.gpt.primary_entries, 0,
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drive.gpt.sector_bytes * GPT_ENTRIES_SECTORS);
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memset(drive.gpt.secondary_entries, 0,
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drive.gpt.sector_bytes * GPT_ENTRIES_SECTORS);
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drive.gpt.modified |= (GPT_MODIFIED_HEADER1 | GPT_MODIFIED_ENTRIES1 |
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GPT_MODIFIED_HEADER2 | GPT_MODIFIED_ENTRIES2);
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// Initialize a blank set
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if (!params->zap)
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{
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GptHeader *h = (GptHeader *)drive.gpt.primary_header;
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memcpy(h->signature, GPT_HEADER_SIGNATURE, GPT_HEADER_SIGNATURE_SIZE);
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h->revision = GPT_HEADER_REVISION;
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h->size = sizeof(GptHeader);
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h->my_lba = 1;
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h->alternate_lba = drive.gpt.drive_sectors - 1;
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h->first_usable_lba = 1 + 1 + GPT_ENTRIES_SECTORS;
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h->last_usable_lba = drive.gpt.drive_sectors - 1 - GPT_ENTRIES_SECTORS - 1;
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if (!uuid_generator) {
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Error("Unable to generate new GUID. uuid_generator not set.\n");
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goto bad;
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}
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(*uuid_generator)((uint8_t *)&h->disk_uuid);
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h->entries_lba = 2;
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h->number_of_entries = 128;
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h->size_of_entry = sizeof(GptEntry);
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// Copy to secondary
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RepairHeader(&drive.gpt, MASK_PRIMARY);
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UpdateCrc(&drive.gpt);
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}
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// Write it all out
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return DriveClose(&drive, 1);
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bad:
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DriveClose(&drive, 0);
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return CGPT_FAILED;
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}
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